YAMAHA GRIZZLY 125 2010 Owner's Guide

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ON
With the fuel cock lever in this position, fuel flows
to the carburetor. Turn the fuel cock lever to this
position when starting the engine and riding.
RES
This indicates reserve. With the fuel cock lever in
this position, the fuel reserve is made available.
Turn the fuel cock lever to this position if you run
out of fuel while riding. When this occurs, refuel as
soon as possible and be sure to turn the fuel cock
lever back to “ON”!

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Starter (choke)
Starting a cold engine requires a richer air-fuel mix-
ture, which is supplied by the starter (choke).
Move the starter (choke) in direction (a) to turn on
1. Arrow mark positioned over “ON”
ON
FUEL
RES
OFF
ON
1

1. Arrow mark positioned over “RES”
OFF
ONFUEL RES
RES
1

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the starter (choke).
Move the starter (choke) in direction (b) to turn off
the starter (choke).
See the “Starting a cold engine” section on page
6-1 for proper operation.
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Seat
To remove the seat
Pull the seat lock lever upward and pull up the seatat the rear.
To install the seat
Insert the projections on the front of the seat into
the seat holders and push down on the seat at the
rear. Make sure that the seat is securely fitted.

1. Fully open
2. Half open
3. Closed
4. Starter (choke)
(b)
(a)4
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1. Seat lock lever
1

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Front carrier

Do not exceed the load limit of 5.0 kg (11 lb) for
the front carrier.

Do not exceed the maximum load of 105.0 kg
(231 lb) for the ATV.
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Rear carrier

Do not exceed the load limit of 10.0 kg (22 lb) for
the rear carrier.

Do not exceed the maximum load of 105.0 kg(231 lb) for the ATV.
1. Projection
2. Seat holder
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PRE-OPERATION CHECKS
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Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always
follow the inspection and maintenance procedures and schedules described in the Owner’s Manual.
WARNING

EWB00481
Failure to inspect or maintain the vehicle properly increases the possibility of an accident or equip-
ment damage. Do not operate the vehicle if you find any problem. If a problem cannot be corrected
by the procedures provided in this manual, have the vehicle inspected by a Yamaha dealer.
Before using this vehicle, check the following points:
ITEM ROUTINE PAGE
Fuel


Check fuel level in fuel tank, and add recommended fuel if neces-
sary.

Check fuel line for leakage. Correct if necessary.4-6, 5-3
Engine oil

Check oil level in engine, and add recommended oil to specified
level if necessary.

Check ATV for oil leakage. Correct if necessary.5-3, 8-9
Transmission oil

Check oil level in transmission case, and add recommended oil to
specified level if necessary.

Check ATV for oil leakage. Correct if necessary.5-3, 8-12
Front brake

Check operation, and correct if necessary.

Lubricate cable if necessary.

Check lever free play, and adjust if necessary.5-3, 8-26, 8-27
Rear brake

Check operation, and correct if necessary.

Lubricate cable if necessary.

Check lever free play, and adjust if necessary.5-3, 8-26, 8-31

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Throttle lever

Make sure that operation is smooth. Lubricate cable and lever hous-
ing if necessary.

Check cable free play, and adjust if necessary.5-3, 8-24
Control cables

Make sure that operation is smooth. Lubricate if necessary. 8-36
Drive chain

Check chain slack, and adjust if necessary.

Check chain condition. Lubricate if necessary.5-3, 8-32, 8-35
Wheels and tires

Check wheel condition, and replace if damaged.

Check tire condition and tread depth. Replace if necessary.

Check air pressure. Correct if necessary.5-3
Brake levers

Make sure that operation is smooth. Lubricate lever pivoting points
if necessary.8-36
Chassis fasteners

Make sure that all nuts, bolts and screws are properly tightened. 5-5
Instruments, lights and
switches

Check operation, and correct if necessary. 5-6
Battery

Check electrolyte level. Fill with distilled water if necessary. 5-6, 8-39
ITEM ROUTINE PAGE

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Fuel
Make sure that there is sufficient fuel in the tank.
(See page 4-6.)
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Engine oil
Make sure that the engine oil is at the specified lev-
el. Add oil as necessary. (See page 8-9.)
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Transmission oil
Make sure that the transmission oil is at the speci-
fied level. Add oil as necessary. (See page 8-12.)
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Front and rear brakes
Brake levers

Check for correct free play in the brake levers. If
the free play is incorrect, adjust it. (See pages
8-27 and 8-31.)

Check operation of the levers. They should
move smoothly and there should be a firm feel-
ing when the brake is applied. If not, have the
ATV checked by a Yamaha dealer.
Brake operation
Test the brakes at slow speed after starting out to
make sure they are working properly. If the brakes
do not provide proper braking performance, check
the brakes for wear. (See page 8-26.)
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Throttle lever
Check the operation of the throttle lever. It must
open smoothly and spring back to the idle position
when released. Have a Yamaha dealer correct if
necessary.
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Drive chain
Check the condition of the drive chain and check
the drive chain slack. Lubricate and adjust the
drive chain as necessary. (See page 8-32.)
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Tires
Check tire pressure regularly to make sure it is at
the recommended specifications. Also check for
wear and damage.
Tire pressure
Use the low-pressure tire gauge to check and ad-
just tire pressures when the tires are cold. Tire

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pressures must be equal on both sides.
WARNING! Operation of this vehicle with im-
proper tire pressure may cause severe injury
or death from loss of control or rollover. Tire
pressure below the minimum specified could
also cause the tire to dislodge from the rim un-
der severe riding conditions.
[EWB02541]
Set tire pres-
sures to the following specifications:
The low-pressure tire gauge is included as stan-
dard equipment. Make two measurements of thetire pressure and use the second reading. Dust or
dirt in the gauge could cause the first reading to be
incorrect.
Tire wear limit
When the tire groove decreases to 3 mm (0.12 in)
due to wear, replace the tire. Recommended tire pressure:
Front
20.0 kPa (0.200 kgf/cm
2
, 2.9 psi)
Rear
25.0 kPa (0.250 kgf/cm
2
, 3.6 psi)
Minimum tire pressure:
Front
17.0 kPa (0.170 kgf/cm
2
, 2.5 psi)
Rear
22.0 kPa (0.220 kgf/cm
2
, 3.2 psi)
Maximum tire seating pressure:
Front
250 kPa (2.5 kgf/cm
2
, 36 psi)
Rear
250 kPa (2.5 kgf/cm
2
, 36 psi)
1. Low-pressure tire gauge
1

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Tire information
This ATV is equipped with tubeless tires with
valves.
WARNING

EWB02551
Use of improper tires on this ATV may cause
loss of control, increasing your risk of an acci-
dent.
After extensive tests, only the tires listed below
have been approved for this model by Yamaha
Motor Co., Ltd.
Aftermarket tires and rims
The tires and rims that came with your ATV were
designed to match the performance capabilities
and to provide the best combination of handling,
braking, and comfort. Other tires, rims, sizes, and
combinations may not be appropriate.

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Chassis fasteners
Make sure that all nuts, bolts and screws are prop-
1. Tire wear limit
Front:
Manufacturer/model:
DUNLOP/KT536A
Size:
AT20 x 7-8
Type:
Tubeless
Rear:
Manufacturer/model:
DUNLOP/KT537A
Size:
AT22 x 10-8
Type:
Tubeless

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erly tightened.
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Instruments, lights and switches
Check that all instruments, lights and switches are
working properly. Correct if necessary.
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Battery
Check the fluid level in the battery. Fill with distilled
water if necessary. (See page 8-39.)

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OPERATION
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Read the Owner’s Manual carefully before riding
the ATV. If there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING

EWB00631
Read the Owner’s Manual carefully to become
familiar with all controls in order to help pre-
vent any loss of control, which could cause an
accident or injury.
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Starting a cold engine
NOTICE

ECB00150
See the “Engine break-in” section on page 6-4
prior to operating the engine for the first time.
1. Set the parking brake.
2. Turn the fuel cock to “ON”.
3. Turn the key to “ON” and the engine stop
switch to “”.
4. Shift the drive select lever into the neutral po-sition. The neutral indicator light should come
on. If the indicator light does not come on,
have a Yamaha dealer check the electrical cir-
cuit.
TIP

The engine can be started only when the drive se-
lect lever is in the neutral position.
5. Use the starter (choke) in reference to the fig-
ure:
Position (1):
Cold engine start with ambient temperature
below 5 °C (40 °F).
Position (2):
Cold engine start with ambient temperature
between 0 °C (30 °F) and 30 °C (90 °F).
Position (3):
Cold engine start with ambient temperature
above 25 °C (80 °F).